#!/usr/bin/perl


# Copyright 2000-2002 Katipo Communications
#
# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it under the
# terms of the GNU General Public License as published by the Free Software
# Foundation; either version 2 of the License, or (at your option) any later
# version.
#
# Koha is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along with
# Koha; if not, write to the Free Software Foundation, Inc., 59 Temple Place,
# Suite 330, Boston, MA  02111-1307 USA

use strict;
use CGI;
use C4::Auth;
use C4::Output;
use C4::Context;
use C4::Branch; # GetBranches
use C4::Koha;
use C4::Circulation;
use C4::Members;
use C4::Dates qw(format_date format_date_in_iso);

=head1 NAME

plugin that shows a stats on borrowers

=head1 DESCRIPTION

=over 2

=cut

my $input = new CGI;
my $fullreportname = "reports/bor_issues_top.tmpl";
my $do_it   = $input->param('do_it');
my $limit   = $input->param("Limit");
my $column  = $input->param("Criteria");
my @filters = $input->param("Filter");
for (0..3) {
	$filters[$_]=format_date_in_iso($filters[$_]);
}
my $output   = $input->param("output");
my $basename = $input->param("basename");
my $mime     = $input->param("MIME");
my $del      = $input->param("sep");
#warn "calcul : ".$calc;
my ($template, $borrowernumber, $cookie)
    = get_template_and_user({template_name => $fullreportname,
                query => $input,
                type => "intranet",
                authnotrequired => 0,
                flagsrequired => {reports => 1},
                debug => 1,
                });
$template->param(do_it => $do_it,
        DHTMLcalendar_dateformat => C4::Dates->DHTMLcalendar(),
        );
if ($do_it) {
# Displaying results
    my $results = calculate($limit, $column, \@filters);
    if ($output eq "screen"){
# Printing results to screen
        $template->param(mainloop => $results, limit=>$limit);
        output_html_with_http_headers $input, $cookie, $template->output;
        exit(1);
    } else {
# Printing to a csv file
        print $input->header(-type => 'application/vnd.sun.xml.calc',
                            -encoding    => 'utf-8',
                            -attachment=>"$basename.csv",
                            -filename=>"$basename.csv" );
        my $cols = @$results[0]->{loopcol};
        my $lines = @$results[0]->{looprow};
        my $sep;
        $sep =C4::Context->preference("delimiter");
# header top-right
        print @$results[0]->{line} ."/". @$results[0]->{column} .$sep;
# Other header
        foreach my $col ( @$cols ) {
            print $col->{coltitle}.$sep;
        }
        print "Total\n";
# Table
        foreach my $line ( @$lines ) {
            my $x = $line->{loopcell};
            print $line->{rowtitle}.$sep;
            foreach my $cell (@$x) {
                print $cell->{value}.$sep;
            }
            print $line->{totalrow};
            print "\n";
        }
# footer
        print "TOTAL";
        $cols = @$results[0]->{loopfooter};
        foreach my $col ( @$cols ) {
            print $sep.$col->{totalcol};
        }
        print $sep.@$results[0]->{total};
        exit(1);
    }
# Displaying choices
} else {
    my $dbh = C4::Context->dbh;
    my @values;
    my %labels;
    my %select;
    my $req;
    
    my @mime = ( C4::Context->preference("MIME") );
#	foreach my $mime (@mime){
#		warn "".$mime;
#	}
        my $CGIextChoice=CGI::scrolling_list(
                                -name     => 'MIME',
                                -id       => 'MIME',
                                -values   => \@mime,
                                -size     => 1,
                                -multiple => 0 );
        
        my @dels = ( C4::Context->preference("delimiter") );
        my $CGIsepChoice=CGI::scrolling_list(
                                -name     => 'sep',
                                -id       => 'sep',
                                -values   => \@dels,
                                -size     => 1,
                                -multiple => 0 );
        #branch
        my $branches = GetBranches;
	my @branchloop;
	foreach my $thisbranch (sort keys %$branches) {
            my %row =(value => $thisbranch,
                                    branchname => $branches->{$thisbranch}->{'branchname'},
                            );
            push @branchloop, \%row;
    }

    #doctype
    my $itemtypes = GetItemTypes;
    my @itemtypeloop;
    foreach my $thisitemtype (keys %$itemtypes) {
# 			my $selected = 1 if $thisbranch eq $branch;
            my %row =(value => $thisitemtype,
# 									selected => $selected,
                                    description => $itemtypes->{$thisitemtype}->{'description'},
                            );
            push @itemtypeloop, \%row;
    }
    
    #borcat
    my ($codes,$labels) = GetborCatFromCatType(undef,undef);
    my @borcatloop;
    foreach my $thisborcat (sort keys %$labels) {
# 			my $selected = 1 if $thisbranch eq $branch;
            my %row =(value => $thisborcat,
# 									selected => $selected,
                                    description => $labels->{$thisborcat},
                            );
            push @borcatloop, \%row;
    }
    
    #Day
    #Month
    $template->param(
                    CGIextChoice => $CGIextChoice,
                    CGIsepChoice => $CGIsepChoice,
                    branchloop =>\@branchloop,
                    itemtypeloop =>\@itemtypeloop,
                    borcatloop =>\@borcatloop,
                    );
output_html_with_http_headers $input, $cookie, $template->output;
}




sub calculate {
    my ($line, $column, $filters) = @_;
    my @mainloop;
    my @loopfooter;
    my @loopcol;
    my @loopline;
    my @looprow;
    my %globalline;
    my $grantotal =0;
# extract parameters
    my $dbh = C4::Context->dbh;

# Filters
# Checking filters
#
    my @loopfilter;
	my @cellmap = (
		"Issue From",
		"Issue To",
		"Return From",
		"Return To",
		"Branch",
		"Doc Type",
		"Bor Cat",
		"Day",
		"Month",
		"Year"
	);
    for (my $i=0;$i<=6;$i++) {
        my %cell;
        if ( @$filters[$i] ) {
            if (($i==1) and (@$filters[$i-1])) {
                $cell{err} = 1 if (@$filters[$i]<@$filters[$i-1]) ;
            }
            # format the dates filters, otherwise just fill as is
            if ($i>=4) {
                $cell{filter} .= @$filters[$i];
            } else {
                $cell{filter} .= format_date(@$filters[$i]);
            }
			defined ($cellmap[$i]) and
				$cell{crit} .= $cellmap[$i];
            push @loopfilter, \%cell;
        }
    }
    my $colfield;
    my $colorder;
    if ($column){
        $column = "issues.".$column if (($column=~/branchcode/) or ($column=~/timestamp/));
        $column = "biblioitems.".$column if $column=~/itemtype/;
        $column = "borrowers.".$column if $column=~/categorycode/;
        my @colfilter ;
        $colfilter[0] = @$filters[0] if ($column =~ /timestamp/ )  ;
        $colfilter[1] = @$filters[1] if ($column =~ /timestamp/ )  ;
        $colfilter[0] = @$filters[2] if ($column =~ /returndate/ )  ;
        $colfilter[1] = @$filters[3] if ($column =~ /returndate/ )  ;
        $colfilter[0] = @$filters[4] if ($column =~ /branch/ )  ;
        $colfilter[0] = @$filters[5] if ($column =~ /itemtype/ )  ;
        $colfilter[0] = @$filters[6] if ($column =~ /category/ )  ;
    # 	$colfilter[0] = @$filters[11] if ($column =~ /sort2/ ) ;
        $colfilter[0] = @$filters[7] if ($column =~ /timestamp/ ) ;
        $colfilter[0] = @$filters[8] if ($column =~ /timestamp/ ) ;
        $colfilter[0] = @$filters[9] if ($column =~ /timestamp/ ) ;
    #warn "filtre col ".$colfilter[0]." ".$colfilter[1];
                                                
    # loop cols.
        if ($column eq "Day") {
            #Display by day
            $column = "issues.timestamp";
            $colfield .="dayname($column)";  
            $colorder .="weekday($column)";
        } elsif ($column eq "Month") {
            #Display by Month
            $column = "issues.timestamp";
            $colfield .="monthname($column)";  
            $colorder .="month($column)";  
        } elsif ($column eq "Year") {
            #Display by Year
            $column = "issues.timestamp";
            $colfield .="Year($column)";
            $colorder .= $column;
        } else {
            $colfield .= $column;
            $colorder .= $column;
        }  
        
        my $strsth2;
        $strsth2 .= "select distinctrow $colfield FROM `issues`,borrowers,biblioitems LEFT JOIN items ON (biblioitems.biblioitemnumber=items.biblioitemnumber) WHERE issues.itemnumber=items.itemnumber AND issues.borrowernumber=borrowers.borrowernumber and returndate is not null";
        if (($column=~/timestamp/) or ($column=~/returndate/)){
            if ($colfilter[1] and ($colfilter[0])){
                $strsth2 .= " and $column between '$colfilter[0]' and '$colfilter[1]' " ;
            } elsif ($colfilter[1]) {
                    $strsth2 .= " and $column < '$colfilter[1]' " ;
            } elsif ($colfilter[0]) {
                $strsth2 .= " and $column > '$colfilter[0]' " ;
            }
        } elsif ($colfilter[0]) {
            $colfilter[0] =~ s/\*/%/g;
            $strsth2 .= " and $column LIKE '$colfilter[0]' " ;
        }
        $strsth2 .=" group by $colfield";
        $strsth2 .=" order by $colorder";
        warn "". $strsth2;
        
        my $sth2 = $dbh->prepare( $strsth2 );
        $sth2->execute;
    
        while (my ($celvalue) = $sth2->fetchrow) {
            my %cell;
            $cell{'coltitle'} = ($celvalue?$celvalue:"NULL");
            push @loopcol, \%cell;
        }
    #	warn "fin des titres colonnes";
    }
    
    my $i=0;
#	my @totalcol;
    my $hilighted=-1;
    
    #Initialization of cell values.....
    my @table;
    
#	warn "init table";
    for (my $i=1;$i<=$line;$i++) {
        foreach my $col ( @loopcol ) {
#			warn " init table : $row->{rowtitle} / $col->{coltitle} ";
            $table[$i]->{($col->{coltitle})?$col->{coltitle}:"total"}->{'name'}=0;
        }
    }


# preparing calculation
    my $strcalc ;
    
# Processing average loanperiods
    $strcalc .= "SELECT  CONCAT(borrowers.surname , \"\\t\",borrowers.firstname),  COUNT(*) AS RANK, borrowers.borrowernumber AS ID";
    $strcalc .= " , $colfield " if ($colfield);
    $strcalc .= " FROM `issues`,borrowers,biblioitems LEFT JOIN items ON (biblioitems.biblioitemnumber=items.biblioitemnumber)  WHERE issues.itemnumber=items.itemnumber AND issues.borrowernumber=borrowers.borrowernumber and returndate is not null";

    @$filters[0]=~ s/\*/%/g if (@$filters[0]);
    $strcalc .= " AND issues.timestamp > '" . @$filters[0] ."'" if ( @$filters[0] );
    @$filters[1]=~ s/\*/%/g if (@$filters[1]);
    $strcalc .= " AND issues.timestamp < '" . @$filters[1] ."'" if ( @$filters[1] );
    @$filters[2]=~ s/\*/%/g if (@$filters[2]);
    $strcalc .= " AND issues.returndate > '" . @$filters[2] ."'" if ( @$filters[2] );
    @$filters[3]=~ s/\*/%/g if (@$filters[3]);
    $strcalc .= " AND issues.returndate < '" . @$filters[3] ."'" if ( @$filters[3] );
    @$filters[4]=~ s/\*/%/g if (@$filters[4]);
    $strcalc .= " AND issues.branchcode like '" . @$filters[4] ."'" if ( @$filters[4] );
    @$filters[5]=~ s/\*/%/g if (@$filters[5]);
    $strcalc .= " AND biblioitems.itemtype like '" . @$filters[5] ."'" if ( @$filters[5] );
    @$filters[6]=~ s/\*/%/g if (@$filters[6]);
    $strcalc .= " AND borrowers.categorycode like '" . @$filters[6] ."'" if ( @$filters[6] );
    @$filters[7]=~ s/\*/%/g if (@$filters[7]);
    $strcalc .= " AND dayname(issues.timestamp) like '" . @$filters[7]."'" if (@$filters[7]);
    @$filters[8]=~ s/\*/%/g if (@$filters[8]);
    $strcalc .= " AND monthname(issues.timestamp) like '" . @$filters[8]."'" if (@$filters[8]);
    @$filters[9]=~ s/\*/%/g if (@$filters[9]);
    $strcalc .= " AND year(issues.timestamp) like '" . @$filters[9] ."'" if ( @$filters[9] );
    
    $strcalc .= " group by borrowers.borrowernumber";
    $strcalc .= ", $colfield" if ($column);
    $strcalc .= " order by RANK DESC";
    $strcalc .= ",$colfield " if ($colfield);
# 	my $max;
# 	if (@loopcol) {
# 		$max = $line*@loopcol;
# 	} else { $max=$line;}
# 	$strcalc .= " LIMIT 0,$max";
    warn "SQL :". $strcalc;
    
    my $dbcalc = $dbh->prepare($strcalc);
    $dbcalc->execute;
# 	warn "filling table";
    my $previous_col;
    my %indice;
    while (my  @data = $dbcalc->fetchrow) {
        my ($row, $rank, $id, $col )=@data;
        $col = "zzEMPTY" if ($col eq undef);
        $indice{$col}=1 if (not($indice{$col}));
        $table[$indice{$col}]->{$col}->{'name'}=$row;
        $table[$indice{$col}]->{$col}->{'count'}=$rank;
        $table[$indice{$col}]->{$col}->{'link'}=$id;
#		warn " ".$i." ".$col. " ".$row;
        $indice{$col}++;
    }
    
    push @loopcol,{coltitle => "Global"} if not($column);
    
    for ($i=1; $i<=$line;$i++) {
        my @loopcell;
        warn " $i";
        #@loborrowersopcol ensures the order for columns is common with column titles
        # and the number matches the number of columns
        my $colcount=0;
        foreach my $col ( @loopcol ) {
#			warn " colonne :$col->{coltitle}";
            my $value;
            my $count=0;
            my $link;
			my $key = ((!(@loopcol)) or ($col->{coltitle} eq "NULL") or ($col->{coltitle} eq "Global")) 
					? "zzEMPTY" : $col->{coltitle};
			$value =$table[$i]->{$key}->{'name'};
			$count =$table[$i]->{$key}->{'count'};
			$link  =$table[$i]->{$key}->{'link'};
#			warn " ".$i ." value:$value count:$count reference:$link";
            push @loopcell, {value => $value, count =>$count, reference => $link} ;
        }
        push @looprow,{ 'rowtitle' => $i ,
                        'loopcell' => \@loopcell,
                        'hilighted' => ($hilighted >0),
                    };
        $hilighted = -$hilighted;
    }
# 	

    # the header of the table
    $globalline{loopfilter}=\@loopfilter;
    # the core of the table
    $globalline{looprow} = \@looprow;
    $globalline{loopcol} = \@loopcol;
# 	# the foot (totals by borrower type)
    $globalline{loopfooter} = \@loopfooter;
    $globalline{total}= $grantotal;
    $globalline{line} = $line;
    $globalline{column} = $column;
    push @mainloop,\%globalline;
    return \@mainloop;
}

1;
